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第二题、多项选择题(每题2分，5道题共10分)

1、A digital computer is generally made up of five dstinct elements: a central processing unit,(  ABCD ).

A、input devices

B、memeory storage devices

C、output devices

D、a bus

E、crt screen

2、According to the text,modern digital computers can be divided into four major categories on the basis of cost and performance.They are ＿＿＿ABDF＿＿＿＿.

A、microcomputers

B、workstation

C、lenovo

D、mainframes

E、note book

F、minicomputers

3、One of trends in computer development is ＿＿AC＿＿＿＿,the effort to compress more circuit elements into smaller and smaller ＿＿＿＿＿＿space

A、microminiaturization

B、micromodule

C、chip

D、chat

4、We can define a computer as a device that ＿＿ACDE＿＿＿

A、accepts input

B、deal everything

C、processes data

D、stores data

E、produces output

5、A program is a sequence of ＿＿＿AD＿＿ that can be eｘecuted by a computer.It can either be built into the hardware or exist independently in the form of ＿＿＿＿＿＿＿＿.

A、instructions

B、data

C、hardware

D、software

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